IMAGE FUSING AND PAPER EXIT 9 March 2004
6-8
6.7.2 HOT ROLLER DRIVE
Contact-release solenoid off Contact-release solenoid on
Mechanism
The main motor [A] drives the hot roller [D] through a gear train. One of the gears
in the gear train is the contact-release gear [B]. This gear is linked to the contact-
release solenoid [C]. When the contact-release solenoid is on, it separates the
contact-release gear from another gear [E] in the gear train. As a result, the drive
power of the main motor is not transmitted to the hot roller.
NOTE:
The drive power of the main motor is not transmitted to the paper exit roller
[F]. This roller is driven by the duplex motor.
Contact/Release Control
The contact-release solenoid turns on when the following conditions are all met:
•
The copier is warming up the hot roller.
• The hot roller temperature is 16°C or higher.
• The fusing idling (SP1-103-001) is “No.”
This control is based on the following facts:
• The copier takes a shorter time to heat the hot roller when the roller is not turning.
•
The temperature of the hot roller surface may become uneven when the hot
roller temperature is low and the roller is not turning.
B130D902.WMF
[A]
[D]
[B]
[C]
[E]
[F]
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